> When I make two TTree's write flag true. Both TTrees is written in one file. And the other file is empty.
> 
> I added some lines to fix it in ROMEEventLoop.cpp
> 
> -------
> This is other topic.
> Probably, to close TFile after each run is good. 
> Because, when program runs for several run, 
>  even if program aborts after some runs, files of former runs are safe.
> 
> 
> 
> -------
>   941    // Write non accumulative output tree files
>     942    ROMEString filename;
>     943    ROMETree *romeTree;
>     944    TTree *tree;
>     945    TFile *fTreeFile;
>     946    ROMEString runNumberString;
>     947    gROME->GetCurrentRunNumberString(runNumberString);
>     948    for (int j=0;j<gROME->GetTreeObjectEntries();j++) {
>     949       romeTree = gROME->GetTreeObjectAt(j);
>     950       fTreeFile = fTreeFiles[j];
>     951       if (romeTree->isWrite() && !gROME->isTreeAccumulation()) {
>     952          tree = romeTree->GetTree();
>     953          cout << "Writing Root-File " << tree->GetName() << runNumberString.Data() << ".root" 
> << endl;
>     954          fTreeFile->cd();
>     955          tree->Write("",TObject::kOverwrite);
>     956       }
>     957    }
>     958    cout << endl;



Thanks